manager.py 文件源码

def source(self, cls):
        """
        A decorator to mark package source modules
        It would register all the methods of the class marked by @handler
        with the dispatcher.
        """
        try:
            from pomu.source.base import BaseSource
        except ImportError: #circular import
            return cls
        if cls == BaseSource:
            return cls
        self.backends[cls.__name__] = cls
        for m, obj in inspect.getmembers(cls):
            if isinstance(obj, self.handler._handler):
                self.register_package_handler(cls, obj.handler, obj.priority)
        return cls